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author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/x86/include/asm/cmpxchg_64.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/x86/include/asm/cmpxchg_64.h')
-rw-r--r-- | kernel/arch/x86/include/asm/cmpxchg_64.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/kernel/arch/x86/include/asm/cmpxchg_64.h b/kernel/arch/x86/include/asm/cmpxchg_64.h new file mode 100644 index 000000000..1af94697a --- /dev/null +++ b/kernel/arch/x86/include/asm/cmpxchg_64.h @@ -0,0 +1,23 @@ +#ifndef _ASM_X86_CMPXCHG_64_H +#define _ASM_X86_CMPXCHG_64_H + +static inline void set_64bit(volatile u64 *ptr, u64 val) +{ + *ptr = val; +} + +#define cmpxchg64(ptr, o, n) \ +({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg((ptr), (o), (n)); \ +}) + +#define cmpxchg64_local(ptr, o, n) \ +({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg_local((ptr), (o), (n)); \ +}) + +#define system_has_cmpxchg_double() cpu_has_cx16 + +#endif /* _ASM_X86_CMPXCHG_64_H */ |